S
M
T
W
T
F
S
26
87°
58°
27
89°
58°
28
89°
57°
29
90°
58°
30
91°
58°
31
89°
57°
1
84°
55°
2
83°
55°
3
88°
56°
4
84°
55°
5
83°
55°
6
87°
56°
7
89°
57°
8
84°
57°
9
88°
56°
10
89°
57°
11
91°
57°
12
90°
56°
13
89°
54°
14
89°
55°
15
90°
56°
16
90°
57°
17
89°
58°
18
91°
58°
19
90°
57°
20
90°
57°
21
88°
54°
22
86°
52°
23
84°
53°
24
83°
55°
25
85°
52°
26
89°
56°
27
89°
56°
28
88°
57°
29
89°
53°
30
88°
54°
31
89°
53°
1
88°
52°
2
87°
52°
3
87°
54°
4
89°
56°
5
89°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gilroy
Gilroy's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 52° and 58°. The average high for August is 88° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Gilroy. See also: September | October | November.
